Create Your Own Feedback Loop

It is very simple to create a feedback loop. You simply connect the output into the input.

This can be done by pointing a microphone at a loudspeaker (as in the picture above), or by plugging the output cable from a device, back into the the input of that same device.

You can use any device with an amplifier.

If we connect cables, then we won’t be able to hear the loop (because it will be entirely inside the electronic system). To hear it we need to split the loop and send some of it to a loudspeaker, so that we can hear the sound we are creating.

If you have a small mixing desk, you can create a few of these simple loops and the sound quickly becomes more and more complex as the different loops interact.

Fact

Electric guitars are also famous for their feedback. They use a combination of electrical and physical means.

The guitar makes a sound and the amplifier boosts it.

This causes the strings on the guitar to vibrate and so more sound is sent to be amplified by the amplifier.

The more sound that is amplified, the more the strings vibrate… and so the cycle goes on.